Air lift



Feb. 5, 1929;

B. F. WALDRON AIR LIFT Filed Sept. 1. 1925 VIII/ZZZ Patented Feb.5, 1929.

UNITED STATES BENJAMIN FRANKLIN WALDRON, oi DUNCAN, oxnnnom.

AIR LIFT.

Application filed September 1, 1925. Serial No. 53,924.

This invention aims to provide novel meanswhereby air or other fluid under pressure may be conducted downwardly into a well, and be discharged upwardly, to promote'the flow of liquid out of the well.

to improve generally and to enhance the utility of devices of that type to which the invention appertains.

With the above and other objects in view -which will appear as the description pro' ceeds, the invention'resides in the combination and arrangement of parts and in the details of construction hereinafter described andclaimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention. In the accompanyino drawings Figure 1 shows in lbngitudinal section, a device constructed in accordance with the invention, parts being in elevation;

Figure 2 is a cross section on the line22 of Figure 1;

Figure 3 is an elevation showing one of the nozzles. v

- The device forming the subject matter of this application comprises a head 1." The head 1 has a main channel 2. The main channel 2 is provided with branches Sand 4. A pipe 5 is located in the main channel 2. The lower end of the pipe 5 is laterally inclined and is secured in the branch 3. .The numeral 6 marks a pipe section. The upper end of the pipe section 6 is threaded into the branch 3. The numeral 7 marks another pipe section. The pipe sections 6 and? are connected by a coupling 8.

The numeral 9 designates a foot. The foot 9 has a longitudinal bore 10. The lower end of the pipe section 7 is threaded into the upper end of the bore 10. Thebore 10 has lateral branches 11 and 12. The lateral branch 11 is located near to the upper end of the foot 9. The lateral branch 12 is located near to the lower end of the foot 9. There is an opening 14 in the top of the foot 9. The opening 14 forms an internal shoulder 15 in the foot 9; A tapered passage 16 is fashioned in the foot 9 near to the lower end thereof. The passage 16 is connected with the opening 14 by a bore 36. There is a bottom opening 17 in the foot 9. The opening 17 communicates with the tapered passage 16. At the point where the opening 17 communicates with the passage 16,"there is formed a shoulder 18. The numeral 19 marks a lower nozzle. The lower nozzle 19 includes a tapered portion extended intothe tapered passage 16." There is a space about It is within the province of the disclosure the tapered portion of the lower nozzle 19.

' nozzle 19 is retained in the foot 9. An inlet member or nipple240 is provided. The in let member 240 is threaded into the opening 17 in the body 9. There is a space 24 in the opening 17, between the annular retainer 21 and the inner endof the member 240. The

space 24 is in communication with the branch 12 of the bore-10. The inner end of theinlet member 240 abuts against the lower end of the nozzle 19 so as to prevent the entrance of air from the branch 12 into the nozzle. The line of abutment between the parts 19 and 240 is indicated at 23.

The numeral 25 marks an upper .nozzle.

The'upper nozzle 25 has an outstanding end flange 26. The up er nozzle 25 extends into the opening 14. T e flange 26 of the nozzle 25 abuts against the shoulder 15. An annular retainer 40 is threaded into the opening 14. The retainer 40 engages the flange 26 of the nozzle 25, binding the flange against the shoulder 15 and holding the nozzle 25 in place. A tapered casing 27 is threaded .into the opening 14. There is a space 28 between the retainer 40 and the end of the easing 27. The branch 11 of the bore 10 communicates with the space 28. The tapered nozzle 25 extends into the tapered casing 27 The upper end of the casing 27 is threaded into the branch bore 4, in the head 1.

Air or other fluid under pressure moves downwardly through a conduit comprising the 'p1pe-5, the ipe 6, the pipe 7, the bore 10, and its branc es 11 and 12. The air pro- 2 ceeding through the branch 12 enters the space 24 about the nozzle 19 and moves upwardly through the space which exists within the retainer 21 about the nozzle 19, the a1r moving upwardly between the nozzle and the wallof the tapered passage 16. Thence, the air traverses the bore 36, the liquid in the well being drawn upwardl through the inlet member 240, and being ischarged out of the nozzle 19. The liquid traverses the bore of the nozzle 25. Air under pressure flows through the branch 11 and the space 28, the air proceeding about the nozzle and through the tapered casing 27. Owing to the tapered form of the casing 27, the liquid discharged from the nozzle 25 is given increased velocity, the liquid proceeding, in a rapidly flowing stream, into the branch e and through the channel 2 of the head 1.

The device forming the subject matter of this application will be found to be thoroughly efficient for the ends in view, and, furthermore, it is so constructed that it can be taken down readily for adjustment or repairs.

Having thus described the invention, what is claimed is In an air lift, afoot having an opening and a passage communicating with the opening, a shoulder in the .foot at the juncture of the opening and the passage, a nozzle located partly m the opening and partly in the passage, an annular retainer in the opening, the nozzle being provided withcircumferentially spaced ugs bound against the shoulder by the retainer, a nipple threaded in" the opening'and engaging one end of the said space to provide for the passage of air into the passage andabout the nozzle.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature.

BENJAMIN FRANKLIN wALDRoN. 

